Archive for the ‘bpmn’ Tag

BPMN to BPEL: going to battle with one hand tied?

William Vambenepe writes, “I have been looking at business process modeling and I am a bit puzzled about the connections between the different goals (strategy support, process documentation, automated execution….), audiences (LOB, business analysts, developers…) and tools (process editor, registry, simulation bench, IDE…). I see how it would be nice for all these to play well together. What I don’t quite see is exactly how the current tools achieve that.

One example is the goal of improving communications between business analysts and developers by allowing analysts to capture as much of the intended process as possible in a way that can be easily consumed by developers. That is a worthy goal and it should be eventually achievable (though maybe in a reformulated form) based on industry trends (who would have thought that one day business people would use their own computers to retrieve business data rather than having an operator print documents for them). But it is still a very difficult goal, for which many inherent barriers (in terms of shared vocabulary, skills and mindset) must be overcome. My concern is that the current approaches add many artificial barriers to those intrinsic to the problem.

One source of such artificial barriers is that incompatible business process description languages come into play. One common example is the use of BPMN for analyst-level modeling followed by a translation to BPEL for development tasks. I ran into an example of an incompatibility between the two very early in my experimentations with BPMN, in the form of the “inclusive OR” (the diamond with a circle inside in BPMN).

Read the complete article by William Vambenepe.

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Process Component Models: The Next Generation In Workflow ?

Tom Baeyens, founder of JBoss jBPM gives his view of the state of the BPM / workflow market and introduces a new type of workflow technology called process component models.

This article arguments that the gap between the analysis and the implementation of business processes is far bigger then the marketing of today’s workflow tools might suggest. Also it will propose a much more realistic way of dealing with this situation. The current standards and initiatives will be explained with enough depth so that you can see how they relate to the movements and why.

At the end, a new type of workflow technology is introduced called process component model. This type of framework can handle multiple process languages and it can support process languages that better support the transition from analysis process diagrams to executable processes.

This article is orgnised as follows:

– What is BPEL
     – Thoughts and comments on BPEL
     – BPEL extensions
– BPMN
     – What is BPMN
     – Analysis versus execution
     – Process development process
     – Modelling details
     – Mappings and mismatches
– Other BPM technologies
     – XPDL
     – BPDM
     – jPDL
– Choreography
– Process component models
– Implications of this new approach

Read full article …